how many years is one lightyear
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Light-year Look up light year in Wiktionary, the free dictionary. A light-year (or light year, abbreviation: ly) is a unit of length used informally to express astronomical distances. It is approximately 9 petametres, or 9 trillion kilometres (or about 6 trillion miles). As defined by the International Astronomical Union (IAU), a light-year is the distance that light travels in vacuum in one Julian year (365.25 days). Because it includes the word year, the term light-year is sometimes misinterpreted as a unit of time.
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How Far Is a Light Year? Quick Answer. A light year measures approximately 9.5 trillion kilometers, which is the distance that light travels in one year. It is calculated by taking the speed of light, about 300,000 kilometers per second, and multiplying it by the number of seconds in a year, which is 31,557,600. Continue Reading.
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1 light year equal to how many in earth years? Light Year is a measure of distance, not time. 1 ly is the distance travelled by light in one year, ie speed of light times one year in seconds Source(s): Physics class fridakahlo · 5 years ago
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- Light years. We need a different unit of measurement, because at these distances, kilometres are too small to be much use. One unit for measuring very big distances is the light year. This is the distance that light travels in a year, so 1 light year is about 9 500 000 000 000 km.Using this unit, we say that the star Proxima Centauri is about 4.2 light years away. Even using this unit, numbers in space get pretty big. You know what a kilometre is – you can walk that distance easily. 2  You know what 100 km is – that’s how far a car could travel in an hour at the speed limit on a main road. 3  Travel more than 100 km above the surface of the Earth, and you’re in space, at the edge of the atmosphere.
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How long would it take to travel 1 light-year from earth and 1 light-year back? 1 In one of the NASA Space Shuttles, about 76,526 earth years (38,263 earth years one way). 2  1 light-year is 5.8 trillion miles and the maximum speed of a NASA Space Shuttle is 17,500 miles per hour. 3  The fastest unmanned space craft traveled 157,000 mph.
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How many light years can we travel in ONE year? How far is a light year? about 5,878,612,843,200 miles (tha'ts 5.8 *trillion*) A light year is about 3800 TiMES as far as we can go in 7 years, at 25,000 MPH.
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High School Earth Science/Telescopes A light-year is a unit of distance that is defined as the distance that light travels in one year. One light-year is approximately equal to 9,500,000,000,000 (9.5 trillion) kilometers, or 5,900,000,000,000 (5.9 trillion) miles.
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Convert Light Years to Miles Light Years. A light year is the distance that light travels in one year. The year used by the International Astronomical Union is 365.25 days. Therefore a light year is exactly 9,460,730,472,580.8 kilometers. A mile is a unit of distance equal to 1.609344 kilometers.
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1 light year is equal to how many years of the Earth? The light-year is a unit of length used to express astronomical distances. It is about 9.5 trillion kilometres or 5.9 trillion miles. As defined by the International Astronomical Union (IAU), a light-year is the distance that light travels in vacuum in one Julian year (365.25 days). Because it includes the word year, the term light-year is sometimes misinterpreted as a unit of time.
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What is a light-year? Astronomers measure the distance to the Andromeda galaxy using light-years. One light-year equals about 6 trillion miles. This galaxy is over 2 million light-years from Earth. Image credit: Adam Evans via Wikipedia
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How long does it take to travel 500 light years? There are approximately 5.84 x 1012 (5,840,000,000,000) miles in one light year.
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What is a light-year? Hint: A light-year is a unit of distance, not time. A light-year is how astronomers measure distance in space. It’s defined by how far a beam of light travels in one year – a distance of six trillion miles.
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- a light year is the distance light will travel in a year which is a long long way light travels 186000 miles a second 300000 kilometers per second so a light second is 186000 miles 300000 kilometers so some quick multiplication gives us one light year as 5878500000000 miles
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StarChild Question of the Month for March 2000 What is a light-year. and how is it used? Answer: A light-year is a unit of distance. It is the distance that light can travel in one year. Light moves at a velocity of about 300,000 kilometers (km) each second. So in one year, it can travel about 10 trillion km. More p recisely, one light-year is equal to 9,500,000,000,000 kilometers.
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Convert light years to meters The Light Year is the distance that the light travels in one year, which is 9,460,528,405,000 kilometers. The Meter is the basic metric unit of length, which equals 1.094 yards. Please enter light years value in the first input field, and you'll see the result value in meters in the second field.
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How can the Hubble Space Telescope look back in time? A light year is the distance light travels in one year, or 10 trillion kilometers. That's 1 followed by 13 zeros! The Hubble Space Telescope can see objects even more distant than your eyes can.
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1 light year is equal to how many years of the Earth? The light-year is a unit of length used to express astronomical distances. It is about 9.5 quadrillion metres or 5.9 trillion miles. As defined by the International Astronomical Union (IAU), a light-year is the distance that light travels in vacuum in one Julian year (365.25 days).
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- Light Year definition. August 24, 2017 Urban Dictionary. 1 Light Year = 9324744613632kmOne light-year is defined by going for 365 times within continual rate of light, that will be 299 792 458 m/s in which:m = length in metress = time in moments by Reyna Rymer Report definition. 1. The length light journeys in a single 12 months, or roughly 5.88 trillion miles.
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How many light years is Jupiter away from earth? A light-year is the distance travelled by light in one year, which is 9 trillion, 460 billion, 730 million, 472 thousand and 581 kilometres. In other words, almost 10,000 billion kilometres. First, it should be said that a light year is a measure of distance, not time (which I know is a little confusing from its name!). The minimum distance between Jupiter and Earth is 588 million km (365 million miles).
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- A light-year is a unit of length equal to the distance that light travels through vacuum in a year (about 5,787,499,810,000 miles). It is often confused as a unit of time. The official definition of a light year uses the Julian year of 365.25 days and the speed of light 2.99792458 times 10 to the ….
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How long would it take to travel a light year? The distance of a light year. How long would it take the space shuttle to go one light-year? The shuttle orbits the Earth at about 5 miles per second (18,000 mph). Light travels at 186,000 miles per second, which is about 37,200 times faster than the shuttle. So the shuttle would need about 37,200 years to go one light-year.
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Light Year Distance Calculator A light year is a measurement of distance. This distance is measured by how far light can travel in a year. Light travels at approximately 186,000 miles per second. In one year (365.25 days) that is equivalent to 5,869,713,600,000 miles. Example: How far does light travel in 3 months. 3 months is 1/4 year.
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General Astronomy/Print version A light-second is the distance light travels in one second, or 7.5 times the distance around Earth’s equator. A light-year is the distance light travels in one year. How far is that? Multiply the number of seconds in one year by the number of miles or kilometers that light travels in one second, and there you have it: one light-year. It’s about 5.88 trillion miles (9.5 trillion km).
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How long to travel a lightyear? Meaning using our best technology available it would take 4,473 years to travel a lightyear. --- And yes, you're correct in thinking 1 lightyear would get us just outside our Solar System. The boundary to our Solar System is defined as the Oort Cloud, which is approximately 1 lightyear away from our Sun.
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- Instead, astronomers measure distances to objects which are outside our solar system in light-years. A light-year (ly) is the distance that light can travel in one year in a vacuum (empty space).he speed of light is about 186,000 miles or 300,000 kilometers per second. So, in one year light travels a distance of about 5,880,000,000,000 miles or 9,460,000,000,000 kilometers or 63,240 A.U.. This distance is 1 light-year.